Stator punching sheet structure of low-noise oil-cooled flat wire motor

Abstract

The invention discloses a stator punching sheet structure of a low-noise oil-cooled flat wire motor, which comprises a stator punching sheet body, a plurality of stator teeth are circumferentially distributed on the stator punching sheet body at equal intervals, and a stator slot is arranged between every two adjacent stator teeth, and is characterized in that each stator tooth is provided with a pair of oil through holes; and the oil through holes are symmetrically distributed about the center line of the stator teeth. The cold flat wire stator punching sheet is provided with oil through holes, the positions of the oil through holes are located on the two sides of the roots of wider stator teeth (the parts close to the circle center of the stator punching sheet are the tops of the stator teeth, and the parts far away from the circle center of the stator punching sheet are the roots of the stator teeth), and the oil through holes are not located on the center lines of the stator teeth, so that the oil through holes cannot influence the circulation of a magnetic field; and the torque output of the motor is not influenced. In addition, the plurality of bosses are additionally arranged on the stator teeth, so that the strength of the stator teeth can be enhanced, the stress deformation of the teeth is improved, and the vibration noise of the motor is improved. The utilization rate of the stator slots can be increased, and heat dissipation of the winding is facilitated.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stator punching structure of a low-noise oil-cooled flat-wire motor. Background technique [0002] In the prior art, flat wire motors use rectangular conductors, and the stator slots are parallel slots, so that the stator teeth are trapezoidal, the tooth width near the slot opening is the smallest, and the tooth width near the slot bottom is the largest. When the motor is working, the magnetic field enters the stator teeth from the air gap, and the magnetic field passing through the narrowest part of the stator teeth, and then passes through the wider stator tooth roots, the magnetic density decreases, the tooth width is excessive, and the utilization rate of the teeth is reduced. [0003] Chinese patent CN110808645A discloses a cooling structure applied to the stator of an oil-cooled flat wire motor, wherein an oil hole is provided between the outer diameter ends of two adjacen...

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Problems solved by technology

[0004] In view of the above-mentioned defects in the prior art, a stator punching structure of a low-noise oil-cooled flat wire motor is provided, which solves the problem that the position of the oil hole affects the circulation of the magnetic field and the torque output of the motor

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